FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION) - page 81

2. PREPARATIONS FOR OPERATION

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2 If deceleration stops of the axis are executed by feed hold signal, it was necessary to make the PMC

ladder. The PMC ladder executes the feed hold stop by making feed hold signal *SP <Gn008.5> to 0
when the power failure detection signals XPFL1 – XPFL8 <Fn374> is 0.

Fig. 2.13 (d) Deceleration stops of the axis by feed hold signal (PMC ladder)

3 If immediately stops of the axis are executed by emergency stop that uses power failure detection

signal (contact signal) from the power supply, it was necessary to make the wiring. The wiring wires
emergency stop *ESP <X8.4>,<X8.0>,<X8.1> of PMC for the power failure detection signal (contact
signal) from the power supply.

Wiring effort can be reduced

by using this function though immediately stops of the axis by the

following wiring can be achieve the stop at power failure earlier than stop time that used this function.

Fig. 2.13 (e) Immediately stops of the axis by emergency stop (Wiring for contact signal)

Power

supply

Power failure detection
signal (contact signal)

CNC

PMC

Servo

amplifier

Immediately

stop

Emergency stop *ESP

<X8.4>,<X8.0>,<X8.1>

The wiring that wires emergency
stop of PMC for the power
failure detection signal (contact
signal) becomes unnecessary by
this function.

Power

supply

Power failure

detection signals

CNC

Power failure

detection signals

XPFL1 -XPFL8<Fn374>

PMC

Servo

amplifier

Deceleration

stop

Feed hold signal

*SP<Gn008.5>

The PMC ladder that executes
the feed hold stop becomes
unnecessary by this function.

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2. PREPARATIONS FOR OPERATION

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NOTE

- Improvement of stop distance reduction function at power failure is valid after the

servo ready signal SA <Fn000.6> is set to “1” for the first time after power on.

- It enters the servo off state at the same time as generating the alarm at the

immediately stops (alarm SV1094), and it shifts to deceleration stop operation
with the dynamic brake. In this case, the stopping distance can be shortened by
using brake control function (bit 6 (BRKCx) of parameter No.2005) and quick stop
at emergency stop (bit 0 (DBSTx) of parameter No.2017). Refer to Servo motor
parameter manual (B-65270EN) for details of brake control function and quick
stop at emergency stop.

- This function executes the axis stop directly according to the power failure

detection signal from power supply without using PMC. Therefore, timing in which
the axis stop begins is different from conventional stop distance reduction
function at power failure. Use conventional stop distance reduction function at
power failure if the axis should stop after operating the machine side according to
the power failure detection signals XPFL1 – XPFL8 <Fn374>.

Parameter

2005

BRKCx

[Input type] Parameter input

[Data type] Bit axis

#6 BRKCx

Brake control function is:

Disabled.

Enabled.

2017

DBSTx

[Input type] Parameter input

[Data type] Bit axis

#0 DBSTx

Specifies whether to enable quick stop type 1 at emergency stop as follows:

To disable.

To enable.

When using the quick stop at emergency stop function, make the brake control setting for
all the axes to which thus function is applied.

NOTE

When only the brake control function is set, a gradual stop occurs
with the torque limit set by the torque limit setting function during
brake control.
When the quick stop at emergency stop is enabled, a gradual stop
occurs with the torque limit set to 100%, so that the stop distance is
reduced.

2. PREPARATIONS FOR OPERATION

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11808

PFD

[Input type] Parameter input

[Data type] Bit path

#2 PFD

Improvement of stop distance reduction function at power failure is:

Immediately stop (alarm SV1094).

Deceleration stop (alarm DS0099).

11820

PFSx

[Input type] Parameter input

[Data type] Bit axis

#1 PFSx

Improvement of stop distance reduction function at power failure is:

Disabled.

Enabled.

Signal

Emergency stop (input)

*ESP<X008.4> (for the first machine group), <X008.0> (for the second machine
group), <X008.1> (for the third machine group), <Gn008.4>

[Classification] Input signal

[Function] Activating an emergency stop signal stops the machine instantly.

[Operation] When the emergency stop signal *ESP turns to “0”, the emergency stop is applied to the

machine and the CNC is reset. This signal is controlled by the B contacts of a pushbutton
switch. The emergency stop signal turns the servo ready signal SA to “0”.

Feed hold signal *SP<Gn008.5>

[Classification] Input signal

[Function] Halts automatic operation.

[Operation] When signal *SP is set to 0 during automatic operation, the CNC enters the feed hold

state and stops operation. Automatic operation cannot be started when signal *SP is set to
0.
MEM, RMT, or MDI mode

Servo Ready Signal SA<Fn000.6>

[Classification] Output signal

[Function] Signal SA turns to “1” when the servo system is ready to operate. For an axis that is to be

braked, release the brake when this signal is “1” and apply the brake when this signal is
“0”.

Power Failure Detection Signals XPFL1 to XPFL8<Fn374>

[Classification] Output signal

[Function] This signal indicates that power failure is detected by the power supply.

[Operation] This signal turns to 1 at:

Normal

The signal turns to 0 at:
-

Power failure status

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2. PREPARATIONS FOR OPERATION

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Signal address

X008

*ESP

(*ESP)

Gn008

*SP

*ESP

Fn000

Fn374

XPFL8

XPFL7

XPFL6

XPFL5

XPFL4

XPFL3

XPFL2

XPFL1

Alarm and message

Number

Message

Description

SV1094

STOP DISTANCE REDUCTION
ENABLE

The axis stop is executed by stop distance reduction function at
power failure.

DS0099

STOP DISTANCE REDUCTION
ENABLE

The axis stop is executed by stop distance reduction function at
power failure.

3. MANUAL OPERATION

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MANUAL OPERATION

3.1

JOG FEED/INCREMENTAL FEED

Overview

Jog feed

In jog mode, setting a feed axis and direction selection signal to “1” moves the tool along the selected
axis in the selected direction continuously.
Manual operation is allowed one axis at a time. Up to 3 axes can be selected at a time by setting bit 0
(JAX) of parameter No.1002.
By using bit 6 of parameter No. 7001, the number of axes that can be selected can be increased up to the
maximum number of simultaneously controlled axes.

Incremental feed

In incremental feed mode, setting a feed axis and direction selection signal to “1” moves the tool one step
along the selected axis in the selected direction. The minimum distance the tool is moved, is the least
input increment. The step can be 10, 100, or 1000 times the least input increment.
Bit 2 (HNT) of parameter No. 7103 can be used to multiply the obtained step by 10.

Feedrate

The jog feedrate is specified in parameter No.1423.
The jog feedrate can be adjusted with the jog feedrate override dial.
With manual rapid traverse selection signal, the tool can be moved at the rapid traverse rate regardless of
the jog feedrate override signal.

Explanation

Manual per revolution feed

The manual per revolution feed is enabled for jog feed and  incremental feed by setting bit 4 (JRV) of
parameter No.1402  to 1.  During the manual per revolution feed, jog feed and  incremental feed is
performed at the feedrate that is obtained by multiplying the spindle speed and the jog feedrate override
value by the feed amount per revolution specified with the parameter No. 1423. In the case of linear axis
(metric input), during manual per revolution feed, the tool is jogged at the following feedrate:
Parameter setting value (mm/rev)

JOG feedrate override

actual spindle speed (rev/min).

NOTE

1 Manual per revolution feed is not available at the setting of without the position

coder (setting bit 0 (NPC) of parameter No.1402 to 1 or bit 1 (FPR) of parameter
No.3729 to 1).

2 When multi spindle control is enabled and the multiple position coders are used,

the target feedback pulses from the position coder for manual per revolution feed
is selected with a position coder select signal (PC2SLC<Gn028.7>,
PC3SLC<Gn026.0>, PC4SLC <Gn026.1>). And in addition, when multi path
control is enabled, an arbitrary position coder can be selected by combining a
path spindle feedback selection signals (SLPCA<Gn064.2>, SLPCB<Gn064.3>,
SLPCC<Gn403.4>, SLPCD<Gn403.5>). For the selection of a position coder,
see the section of "Multi spindle" and "Path spindle control".

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Signal

The following signals determine that way the jog feed or incremental feed is executed.

Selection

Jog feed

Incremental feed

Mode selection

MD1, MD2, MD4, MJ

MD1, MD2, MD4, MINC

Selection of the axis to move

+J1, -J1, +J2, -J2, +J3, -J3, ...

Selection of the direction to move the axis

Selection of the move amount

MP1, MP2

Selection of feedrate

*JV0 to *JV15, RT, ROV1, ROV2

The only difference between jog feed and incremental feed is the method of selecting the feed distance. In
jog feed, the tool continues to be fed while feed axis and direction selection signals are 1: +J1, -J1, +J2,
-J2, +J3, -J3, etc. In incremental feed, the tool is fed by one step.
The distance of the step is selected by the manual handle feed move distance selection signals MP1 and
MP2.
For the signals selecting the mode, see "Mode Selection Signals." In selection of the move amount, for
manual handle feed amount selection signals MP1 and MP2, see "MANUAL HANDLE FEED". In
selection of feedrate, for rapid traverse override signals ROV1 and ROV2, see “Feedrate Override
Signals.”
Other signals are described below.

Feed Axis and Direction Selection Signal +J1 to +J8<Gn100>-J1 to -J8<Gn102>

[Classification] Input signal

[Function] Selects a desired feed axis and direction in jog feed or incremental feed. The sign (+ or -)

in the signal name indicates the feed direction. The number following J indicates the
number of the control axis.

1 : First axis is fed

2 : Second axis is fed

3 : Third axis is fed

: :

8 : Eighth axis is fed

+ : Feed in positive direction

- : Feed in negative direction

+ J 1

[Operation] When the jog bit is “1”, the control unit operates as described below.

When jog feed or incremental feed is allowed, the control unit moves the specified
axis in the specified direction. In jog feed, the control unit continues to feed the axis
while the bit is “1”.

Jog mode
(TEACH IN JOG mode)

+J1

1st axis move

In incremental feed, the control unit feeds the requested axis by the step distance
which is specified by the manual handle feed move distance selection signals MP1,
MP2, then the axis stops. Even if the signal is set to “0” while the axis is being fed,
the control unit does not stop moving.

To feed the axis again, set the signal to “0”, then to “1” again.

3. MANUAL OPERATION

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CAUTION

1 If both the positive direction and negative direction signals of the

same axis are simultaneously set to “1”, neither the positive
direction nor the negative direction is selected. The control unit
assumes that both these signals are set to “0”.

2 If the feed axis and direction selection signals are set to “1” before

the jog feed mode or incremental feed mode is selected, these
signals are invalidated. After the jog feed mode or incremental feed
mode is selected, set these signal to “0”, then set them to “1” again.

3 If the control unit is reset while the feed axis and direction selection

signals are set to “1” or if a feed axis and direction signal turns to
“1” while the control unit is in the reset state, the signal will be
ignored even after releasing reset. After the reset state is released,
set these signals to “0”, then set them to “1” again.

Jog mode or incremental feed
mode

+J1

1st axis move

Axis is fed again after signals
have turned to "0" once.

+J1 is
ineffective
during this
period.

Jog mode or incremental feed
mode

Reset

+J1

1st axis move

Axis is fed again after
signals have turned to "0"
once.

Move is stopped
by resetting

+J1 is
ineffective
during this
period.

Manual feedrate override signal *JV0 to *JV15<Gn010,Gn011>

[Classification] Input signal

[Function] Selects a feedrate in jog feed or incremental feed. These signals are in sixteen bit binary

code, which corresponds to the override values as follows:

∑

0.01%

(%)

value

Override

where

Vi=0 when *JVi is “1”.

Vi=1 when *JVi is “0”.

The override value is assumed to be zero when all of the signals, (*JV0 to *JV15) are set
to “1” or “0”. When this occurs, the feed is stopped. The override value can be specified
in the range of 0% to 655.34% in units of 0.01%. Some examples are listed below.

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3. MANUAL OPERATION

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*JV0 to *JV15

Override value

1 1 1 1

1 1 0 1

0 1 1 0

0 0 0 0

1 1 1 1

1 1 0 0

1 0 0 0

0 0 1 1

0 0 0 0

1 1 1 1

1 0 0 1

0 0 0 1

1 1 1 0

1 0 1 1

0 0 0 0

1 1 1 1

1 1 1 0

0 1 0 1

1 0 1 1

0 1 1 1

1 1 1 1

0 0 0 1

0 0 0 0

0.01

0.10

1.00

10.00

100.00

400.00

655.34

[Operation] If rapid traverse selection signal RT is “0” during jog feed or incremental feed, actual

feedrate is manual feedrate set by parameter No.1423 multiplied by override value
selected by this signals.

NOTE

The *JVi signals also serve as the override signals during dry run in
automatic operation mode.

Manual rapid traverse selection signal RT<Gn019.7>

[Classification] Input signal

[Function] Selects a rapid traverse rate for jog feed or incremental feed.

[Operation] When the signal turns to “1”, the control unit operates as described below:

The control unit executes the jog feed or incremental feed at a rapid traverse rate. The
rapid traverse override is validated.
When the signal is switched from “1” to “0” or vice versa during jog feed or incremental
feed, the feedrate is decelerated until it reaches zero, then increased to the specified value.
During acceleration and deceleration, the feed axis and direction selection signal can be
kept “1”.

Jog feed mode or incremental feed mode

+J1

RT

1st axis move

Rapid traverse rate

Feedrate selected by manual feedrate override signal

WARNING

After the power is turned on, stored stroke check function does not
work until the reference position return is completed. During this
period, the control unit ignores manual rapid traverse selection
signal RT, if it is set to “1”, and keeps moving the tool at a feedrate
selected by the manual feedrate override signal. The bit 0 (RPD) of
parameter No. 1401 can be set so the rapid traverse is validated
before the reference position return is completed.

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